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公开(公告)号：US20240001319A1
公开(公告)日：2024-01-04
申请号：US18469241
申请日：2023-09-18
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Seung Min YANG , Kyung Hoon KIM , Gun Hee KIM , Young Kyu JEONG , O Hyung KWON , Chan Bin MO , Yong Su JO , Hye Min PARK , Gwang Hwa JIN
CPC classification number: B01J12/02 , B22F9/16 , B01J19/24 , B01J12/005
Abstract: Provided are an apparatus for producing inorganic powder, and a method of producing inorganic powder by using such. The apparatus includes a vaporization part where a condensed-phase precursor is vaporized to obtain a gas-phase precursor, a partial precipitation part where the gas-phase precursor obtained in the vaporization part is partially precipitated to a condensed phase, and a reaction part where the gas-phase precursor remaining after being partially precipitated to a condensed phase in the partial precipitation part reacts with a reaction gas to obtain inorganic powder. An equilibrium vapor pressure of the gas-phase precursor in the partial precipitation part is lower than a vapor pressure of the gas-phase precursor obtained in the vaporization part, and an equilibrium vapor pressure of the precursor in the reaction part is equal to or higher than a vapor pressure of the gas-phase precursor partially precipitated to a condensed phase in the partial precipitation part.
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公开(公告)号：US20230144295A1
公开(公告)日：2023-05-11
申请号：US17544515
申请日：2021-12-07
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Seung Min YANG , Kyung Hoon KIM , Gun Hee KIM , Young Kyu JEONG , O Hyung KWON , Chan Bin MO , Yong Su JO , Hye Min PARK , Gwang Hwa JIN
CPC classification number: B01J12/02 , B01J12/005 , B01J19/24 , B22F9/16
Abstract: Provided are an apparatus for producing inorganic powder, and a method of producing inorganic powder by using such. The apparatus includes a vaporization part where a condensed-phase precursor is vaporized to obtain a gas-phase precursor, a partial precipitation part where the gas-phase precursor obtained in the vaporization part is partially precipitated to a condensed phase, and a reaction part where the gas-phase precursor remaining after being partially precipitated to a condensed phase in the partial precipitation part reacts with a reaction gas to obtain inorganic powder. An equilibrium vapor pressure of the gas-phase precursor in the partial precipitation part is lower than a vapor pressure of the gas-phase precursor obtained in the vaporization part, and an equilibrium vapor pressure of the precursor in the reaction part is equal to or higher than a vapor pressure of the gas-phase precursor partially precipitated to a condensed phase in the partial precipitation part.
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公开(公告)号：US20240416419A1
公开(公告)日：2024-12-19
申请号：US18698776
申请日：2022-10-07
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Seung Min YANG , Young Kyu JEONG , Ohyung KWON , Kyung Hoon KIM , Gun Hee KIM
Abstract: According to one aspect of the present invention, a heat treatment method for a metal powder is provided. The heat treatment method for a metal powder, according to one embodiment of the present invention, comprises the steps of: preparing a metal powder-anti-sintering agent composite comprising metal powders dispersed and arranged so as to be distanced from each other in an anti-sintering agent; and heat treating the metal powder-anti-sintering agent composite.
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公开(公告)号：US20230415232A1
公开(公告)日：2023-12-28
申请号：US18247735
申请日：2021-08-18
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Seung Min YANG , Geon Dae MOON , Young Kyu JEONG , Ohyung KWON , Gun Hee KIM , Kyung Hoon KIM
CPC classification number: B22F9/26 , B22F1/145 , B22F1/054 , B22F1/16 , B22F2998/10 , B22F2304/054 , B22F2301/15 , B22F2999/00 , B22F2302/25
Abstract: Provided is a method of producing a nickel nanopowder, the method capable of preventing coagulation between particles and, accordingly, providing a nickel nanopowder having a small average particle size and a low coagulation rate. According to an embodiment of the present invention, the method of producing a nickel nanopowder includes providing a nickel salt and a shell-forming material; nucleating and growing nickel core particles from the nickel salt; forming a shell layer on surfaces of the nickel core particles using the shell-forming material; and removing the shell layer to form the nickel nanopowder.
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